Finger ring shank



FIG. 1 is a perspective view of a finger ring shank showing my new design with the top of the ring indicated in broken lines, but not forming part of the design;

FIG. 2 is a perspective view similar to FIG. 1, but showing insertion and removal of a diamond in the base of the shank;

FIG. 3 is a front elevational view;

FIG. 4 is a rear elevational view;

FIG. 5 is a left side elevational view;

FIG. 6 is a right side elevational view;

FIG. 7 is a top plan view; and,

FIG. 8 is a bottom plan view. 

The ornamental design for a finger ring shank, as shown and described. 